
Modrinth · Minecraft mod
Bundle Tweak
A single bundle tweak so all items only take 1/64 of the bundle's space.
Quick answer
Which Bundle Tweak release matches 1.20.3?
Bundle Tweak 0.1.0+1.18-fabric targets 1.18, 1.18.1, 1.18.2 with Fabric. Installation on the client is optional. Installation on the dedicated server is optional. No extra mods listed for this file.
Where it goes
Is Bundle Tweak required on the client, server, or both?
Installation on the client is optional. Installation on the dedicated server is optional.
The source marks this as usable on both the client and server.
What else does Bundle Tweak 0.1.0+1.18-fabric need?
0.1.0+1.18-fabric on 1.20.3. Every mod below is checked against that same setup.
This file does not list any required mods. Do not add a library just because a different file uses it.
This file does not list any required or optional mods.
Before you install it
Add Bundle Tweak without breaking your instance.
Built for Bundle Tweak 0.1.0+1.18-fabric on 1.20.3. Pick another file and the loader, install side or required mods may change.
- 01
Stick to this file
Use 0.1.0+1.18-fabric. It targets 1.18, 1.18.1, 1.18.2 with Fabric; another release may have different loader, side or dependency requirements.
- 02
Bring the mods it needs
This file does not list any required mods. Do not add a library just because a different file uses it.
- 03
Put it on the correct side
Installation on the client is optional. Installation on the dedicated server is optional.
- 04
Pick the file you checked
Use the “Get this file” button beside 0.1.0+1.18-fabric. It opens that exact file at the source.
About this project
What does Bundle Tweak add?

Bundle Tweak is a Minecraft mod that tweaks one thing about bundles. Items in bundles now always only occupy 1/64th of the bundle, so you can put more 16 stackable items like ender pearls in them, and even unstackable ones like tools! This may feel a bit cheaty, but with Minecraft's awful inventory system it is sometimes hard to organize your inventory well.
Supported versions
Bundle Tweak supports all versions from 1.17 upwards (that's when bundles got added in the code) on Fabric, and from 1.21 upwards also NeoForge. If someome really wants it I can spend time also adding Forge for <1.21, but I have not gotten this request yet.
Here are some screenshots of a bundle with unstackable items in it on different loaders/mc versions:

Project description from Modrinth.
Pick your setup
Bundle Tweak by Minecraft version and loader
Choose the version and loader you play, then open the matching release.
26.1.2
2 loader builds26.1.1
2 loader builds26.1
2 loader builds1.21.11
2 loader builds1.21.10
2 loader builds1.21.9
2 loader builds1.21.8
2 loader builds1.21.7
2 loader builds1.21.6
2 loader builds1.21.5
2 loader builds1.21.4
2 loader buildsShowing the newest 12 of 33 game versions. Older files are in the list below.
Check the dependencies, then try the file in a copied instance before changing a world you care about.
Recent files
Bundle Tweak versions and loaders
0.1.0+1.18-fabric
bundletweak-fabric-0.1.0+1.18.jar
28 Aug 2026
Looking for an older file? The official Modrinth project page is in Resources.